Home / 13,008.68-17,947.50-7,342.70

Finding the Fourth Proportional to 13,008.68, 17,947.50 and 7,342.70

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Solution

The fourth proportional to 13,008.68, 17,947.50 and 7,342.70 is: 10,130.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,008.68 : 17,947.50 = 7,342.70 : x
  2. Step 2: Convert to fraction form
    13,008.68/17,947.50 = 7,342.70/x
  3. Step 3: Cross multiply
    13,008.68x = 17,947.50 × 7,342.70
  4. Step 4: Simplify right side
    13,008.68x = 131,783,108.25
  5. Step 5: Solve for x
    x = 131,783,108.25/13,008.68
  6. Step 6: Final answer
    x = 10,130.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.